Genesis 37:34-36

Then Jacob tore his clothes and put on rough cloth to show that he was upset, and he continued to be sad about his son for a long time. All of his sons and daughters tried to comfort him, but he could not be comforted. He said, “I will be sad about my son until the day I die.” So Jacob cried for his son Joseph. Meanwhile the Midianites who had bought Joseph had taken him to Egypt. There they sold him to Potiphar, an officer to the king of Egypt and captain of the palace guard.